acpi: property: Let args be NULL in __acpi_node_get_property_reference

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[ Upstream commit bef52aa0f3 ]

fwnode_get_property_reference_args() may not be called with args argument
NULL on ACPI, OF already supports this. Add the missing NULL checks and
document this.

The purpose is to be able to count the references.

Fixes: 977d5ad39f ("ACPI: Convert ACPI reference args to generic fwnode reference args")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20231109101010.1329587-2-sakari.ailus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Sakari Ailus 2023-11-09 12:10:08 +02:00 • committed by Greg Kroah-Hartman

parent 76be69716c

commit 893c3ca250

1 changed files with 4 additions and 0 deletions

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drivers/acpi/property.c

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